diff options
| author | Yongqiang Sun <yongqiang.sun@amd.com> | 2017-09-22 13:41:13 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-10-21 16:43:07 -0400 |
| commit | 671a6246e0d3652c024f99d5641c7cf427b0b5a5 (patch) | |
| tree | e1490fa7be8d8c0ae3a391cdc01d95f69663b1c7 /drivers/gpu/drm/amd/display | |
| parent | 69b516c91cbf459e5fd4b8b6e97cfdfa7ea25126 (diff) | |
drm/amd/display: Early return when turn off a plane.
In case of two monitor connected and turn off one of the monitors,
OTG0 is locked after graphic plane off due to redundant programming
front end regs.
Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 2cea8de9c9be..ffc36f5ac50c 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1190,8 +1190,14 @@ static void commit_planes_for_stream(struct dc *dc, } } - if (surface_count == 0) + if (surface_count == 0) { + /* + * In case of turning off screen, no need to program front end a second time. + * just return after program front end. + */ dc->hwss.apply_ctx_for_surface(dc, stream, surface_count, context); + return; + } /* Lock pipes for provided surfaces, or all active if full update*/ for (i = 0; i < surface_count; i++) { |